Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of oilgear variable displacement piston pump in China. We warmly welcome you to wholesale bulk oilgear variable displacement piston pump for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Product Overview
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Oilgear variable displacement piston pumps use axial piston design with a swash plate or bent-axis mechanism to vary displacement. This allows the pump to supply only the required flow, which improves overall hydraulic system efficiency and lowers operating costs.
Key Advantages
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- Precision-machined piston and cylinder block assemblies for high volumetric efficiency
- Pressure compensator and load sensing control options
- High pressure capability for heavy industrial machinery
- Low noise operation
- Durable bearings and shaft seals for extended service life
Technical Specifications
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| Parameter | Typical Range |
|---|---|
| Pump Type | Axial piston, variable displacement |
| Control Type | Pressure compensated / Load sensing / Manual |
| Maximum Pressure | Up to 350 bar (depending on model) |
| Peak Pressure | Up to 420 bar |
| Displacement Range | Approx. 20 – 260 cc/rev |
| Speed Range | 600 – 3000 rpm |
| Mounting Type | SAE flange / Foot mount |
| Shaft Type | Splined / Keyed |
| Rotation | Clockwise / Counter-clockwise |
| Fluid Compatibility | Mineral hydraulic oil (ISO VG series) |
| Operating Temperature | -20°C to +80°C |
| Efficiency | High volumetric and mechanical efficiency |
Applications
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- Metallurgical and steel processing equipment
- Press machinery and forging systems
- Injection molding machines
- Marine hydraulic systems
- Offshore and oilfield equipment
- Construction machinery
- Power generation hydraulic systems
Related Models
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PVG Series
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PVM Series
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PVP Series
PVV SeriesEach series offers different displacement sizes, control options, and pressure ratings to suit diverse industrial requirements.
FAQ
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How does a variable displacement piston pump save energy?
The pump automatically reduces flow when full output is not required. This prevents unnecessary power consumption and lowers heat generation in the hydraulic system.
What should be considered when selecting a pump model?
Key factors include required flow rate, system pressure, operating speed, control method, mounting style, and fluid type. Proper sizing prevents overheating and premature wear.
Can Oilgear pumps operate under continuous high pressure?
Yes, when used within rated limits and with proper cooling and filtration, they are designed for heavy-duty continuous operation.
How important is oil cleanliness?
Very important. Contaminated oil can damage pistons, cylinder blocks, and valves. Using proper filtration significantly extends service life.
Can the pump run in both directions?
Some models allow bi-directional rotation, but many are designed for a specific rotation direction. Incorrect rotation can damage internal components. Always verify rotation direction before installation.
Contact Us
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• Model identification and cross-reference
• Technical parameter confirmation
• Application matching and selection advice
• Pricing and lead time information
• Bulk order and long-term supply support
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